<template>
  <div class="login-container">
    <el-col :span="8" :offset="3">
      <h1 style="margin-top: 60%;font-size: 60px;font-family: serif;color: white">餐饮数据分析系统</h1>
    </el-col>
    <el-col :span="8" :offset="3">
      <el-form ref="loginForm" :model="loginForm" class="login-form" auto-complete="on"
               label-position="left">
        <transition>
          <div class="title-container">
            <h3 class="title">会员登录</h3>
          </div>
        </transition>
        <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user"/>
        </span>
          <el-input
              ref="username"
              v-model="loginForm.username"
              placeholder="用户名"
              name="username"
              type="text"
              tabindex="1"
              auto-complete="on"
          />
        </el-form-item>

        <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password"/>
        </span>
          <el-input
              :key="passwordType"
              ref="password"
              v-model="loginForm.password"
              :type="passwordType"
              placeholder="密码"
              name="password"
              tabindex="2"
              auto-complete="on"
              @keyup.enter.native="handleLogin"
          />
          <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"/>
        </span>
        </el-form-item>
        <el-row>
          <el-button @click="$router.push('forget-password')" type="text" style="color: white;text-decoration: underline">忘记密码</el-button>
        </el-row>
        <el-row>
          <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;"
                     @click.native.prevent="handleLogin">登录
          </el-button>
        </el-row>

        <el-row>

          <el-button :loading="loading" type="default" style="width:100%;margin-bottom:30px;"
                     @click="toRegisterPage">注册
          </el-button>
        </el-row>

      </el-form>
    </el-col>
  </div>
</template>

<script>

import request from "@/utils/request";

export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '111111'
      },
      loading: false,
      passwordType: 'password',
    }
  },

  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      request({
        url: '/user/login',
        method: 'POST',
        data: this.loginForm
      }).then(v => {
        sessionStorage.setItem('user', JSON.stringify(v.data))
        this.$router.replace('/')
      })
    },
    toRegisterPage() {
      this.$router.push('register')
    }
  }
}
</script>

<style lang="scss">

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  h1 {
    margin: 80px 0;
  }

  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  //background-color: $bg;
  background-image: url(~@/assets/background.jpg);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    background-color: $bg;
    max-width: 100%;
    margin-top: 25%;
    padding: 15px 35px 0;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
